文献类型： 外文期刊
作者： Hao, Jingzhe 1 ; Zhang, Weiwei 4 ; Wang, Hexiang 2 ; Ziya, Nur 1 ; Luo, Ying 1 ; Jia, Peisong 1 ; Zhang, Guoqing 5 ; Ng, 1 ;
作者机构： 1.Xinjiang Acad Agr Sci, Res Inst Plant Protect, Ulmqi, Peoples R China
2.China Agr Univ, State Key Lab Agrobiotechnol, Beijing, Peoples R China
3.China Agr Univ, Dept Microbiol, Beijing, Peoples R China
4.Chinese Acad Med Sci & Peking Union Med Coll, Inst Med Plant Dev, Beijing, Peoples R China
5.Beijing Univ Agr, Coll Plant Sci & Technol, Beijing Key Lab Agr Applicat & New Tech, Beijing, Peoples R China
6.Chinese Univ Hong Kong, Fac Med, Sch Biomed Sci, Shatin, Hong Kong, Peoples R China
关键词： Agaricus sinodeliciosus; laccase; enzymatic properties; purification
期刊名称：BIOTECHNOLOGY AND APPLIED BIOCHEMISTRY （ 影响因子：2.431； 五年影响因子：2.124 ）
ISSN： 0885-4513
年卷期：
页码：
收录情况： SCI
摘要： A homogeneous monomeric laccase (ASL) from Agaricus sinodeliciosus, with a molecular mass of 65 kDa, was isolated using ion-exchange chromatography (CM-cellulose and Q-Sepharose) and gel-filtration chromatography (Superdex 75). This laccase exhibited maximum activity at 50 degrees C and pH 5.0. Hg2+ and Cd2+ significantly inhibited its activity. The laccase displayed a K-m value of 0.9 mM toward 2,2 '-azinobis-(3-ethylbenzthiazoline-6-sulfonate) (ABTS). In addition to ABTS, ASL exhibited higher affinity toward o-toluidine and benzidine than other substrates. ASL is able to decolorize malachite green and Eriochrome black T.
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